Recent Garage Door Repair & Installation tasks in England

Leak from flat above has led to loss of power on Hormann garage motor. Manual access to garage and mains supply fixed but still no power on Hormann motor. Can electrician help or do we need a specialist supplier to repair?

Leak from flat above has led to loss of power on Hormann garage motor. Manual access to garage and mains supply fixed but still no power on Hormann motor. Can electrician help or do we need a specialist supplier to repair?